Smuggle the RefWorks div into an inline span block

Modern browsers don't like divs inside of p elements, and rightly so.
However, the DOM ended up pushing the RefWorks div outside of the
database description p element, with an ugly amount of white space as a
result. So, don't do that; instead, turn the RefWorks div into a span
with a display type of block, and all is well.

Signed-off-by: Dan Scott <dscott@laurentian.ca>